This method retrieves the standard parts of a a Diffie-Hellman (DH) private key.
If the error 'eTooSmall' is returned then one of the buffers is too small to hold part of the DSA key. In this case all the length parameters (e.g., pP->length) are assigned the required length. In this way, only one call is needed to this method to determine the size of all the required buffers (e.g., pP, pQ, pG, pY). To be able to use the DSA public key its associated DSA parameters must also be available.
- Parameters
-
| pP | [ INOUT ] The shared prime number If pP->pString is NULL, then all the buffer required lengths will be returned. pP->length is the address of a P6UINT32 containing the size in bytes of pP->pString. On success the number of bytes stored in pP->pString will be returned in pP->length. If eTooSmall is returned then this parameter is assigned the buffer size required for the key. |
| pG | [ INOUT ] The shared generator If pG->pString is NULL, then all the buffer required lengths will be returned. pG->length is the address of an P6UINT32 containing the size in bytes of pG->pString. On success the number of bytes stored in pG->pString will be returned in pG->length. If eTooSmall is returned then this parameter is assigned the buffer size required for the key. |
| pY | [ INOUT ] The private key value If pY->pString is NULL, then all the buffer required lengths will be returned. pY->length is the address of an P6UINT32 containing the size in bytes of pY->pString. On success the number of bytes stored in pY->pString will be returned in pY->length. If eTooSmall is returned then this parameter is assigned the buffer size required for the key. |
- Returns
| Success | P6R::eOk | |
| Failure | P6R::eNotInitialized | Object is in an incorrect state. |
| P6R::eInvalidArg | One of the pointers is NULL. |
| P6R::eInvalidState | A call to genDHKeyPair() or one of the load methods must be made before a call to this function. |
| P6R::eTooSmall | One of the buffers is too small to hold the requested value. |
